Is having an affair as evil as the top worst crime ?

They are judged harshly by the USA.  Not by society. Having an affair is relatively trivial.  Breaking up a family by the REACTION to the affair is not.  THAT is potentially a serious offense.  But not a crime because it is not called a crime.  Yet it hurts so many people that it is a bigger problem than most crimes.

Why? Because hurting the people you are supposed to love is cruel in perhaps a worse way than a stranger hurting you. 

Oh no, not this crap again. Not everyone 

judges them harshly... in fact some even 

admire them (usually those people who 

themselves would like to have affairs). 

Why are you so freaking obsessed by 

this? Please, tell us what answers you 

want to hear for you to be satisfied and 

then go away or move on to a new topic?

People who are having an affair are not on the same level as murderers or rapists, no, but they're probably up there with thieves and bullies. They are threatening families and homes, disturbing the safety and security of others, and that upsets society in general. It can lead to a lot of emotional and psychological damage, in spouses and children. And "just pecks and cuddles" will inevitably lead to more.

Definitely not.